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Transcription and Regulation

Transcription and Regulation
Transcription factors are

TATA boxes
promoters
proteins which bind to DNA and regulate transcription
CATT boxes

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Transcription and Regulation
Transcription of each set of rRNA genes by RNA polymerasel produces

a single 18S rRNA precursor molecule
a single 5S rRNA precursor molecule
a single 45S rRNA precursor molecule
a single 28S rRNA precursor molecule

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Transcription and Regulation
Transcription results in

complementary DNA
messenger RNA
Okazaki fragments
an amino acid chain

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Transcription and Regulation
The RNA polymerases that transcribe bacterial DNA are

multisubunit enzymes
interchangable with DNA polymerases
only active inside the cell
highly glycosylated in their active forms

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Transcription and Regulation
Upstream regions which are essential for correct transcription are called

start codons
promoters
enhancers
transcription factors

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Transcription and Regulation
RNA polymerase holoenzyme initiates transcription which involves

recognition of the -10 sequence and -35 sequence
recognition of the -35 sequence only
None of these
recognition of the -10 sequence only

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